The Shasta-Trinity National Forest is a federally designated forest in northern California, USA. It is the largest National Forest in California and is managed by the U.S. Forest Service. The 2,210,485 acre (894,552 Ha) forest encompasses five wilderness areas, hundreds of mountain lakes and 6,278 miles (10,103 km) of streams and rivers. Major features include Shasta Lake, the largest man-made lake in California and Mount Shasta, elevation 14,179 feet (4,322 m).
The Shasta-Trinity National Forest offers a wide range of recreational activities. Some of these include hiking, backpacking, mountain climbing, horseback riding, camping, boating, fishing, sightseeing, downhill skiing and riding, snowboarding, cross-country skiing, and snowmobiling. In descending order of land area, the forest is located in parts of Trinity, Shasta, Siskiyou, Tehama, Modoc and Humboldt counties.
The forest includes portions of five congressionally designated Wilderness Areas:
Vegetation types and important trees and shrubs of the Shasta-Trinity National Forest The Shasta-Trinity NF lies at the intersection of the Eastern Klamath Mountains
and the Southern Cascades (Miles & Goudy, 1997), and is largely forested, though at low elevations there are areas of chaparral, Woodland
, and grassland. At high elevations in the Trinity Alps, Eddys, and Mt. Shasta, forest gives way once again to montane chaparral, subalpine woodlands, and ultimately to Alpine
rock and scree.
Starting with lower elevations in the foothills around Shasta Lake, north of Redding
, the forests and woodlands are dominated by gray pine, knobcone pine, Ponderosa
pine, blue oak, black oak, canyon live oak and Douglas-fir. Shrub diversity is very high. Common understory shrubs at lower elevations are whiteleaf manzanita, wedgeleaf ceanothus, California Buckeye
, California coffeeberry and western redbud. In moist stream canyons, other trees and shrubs prevail—bigleaf maple, western spicebush, dogwood, white alder, and Willows
Lakes and rivers:
The main branch of the Trinity River
is a designated a National Wild and Scenic River which runs through the forest. The Shasta-Trinity National Forest also covers almost 70 percent of the watershed of the South Fork
Trinity River, a tributary of the Trinity River. Shasta, Lewiston
and Trinity Lakes are part of the Whiskeytown-Shasta-Trinity National Recreation Area
Shasta Lake has 365 miles (587 km) of shoreline made-up of many arms and inlets. The four major arms of the lake are: Sacramento
, Squaw Creek and Pit and have scenery as well as unusual geologic and historic areas. Lewiston Lake
, near the town of Weaverville
, lies just downstream from Trinity Dam
and Lake and just north of the town of Lewiston and is a constant level lake. It lies within the Whiskeytown - Shasta-Trinity National Recreation Area. Iron Canyon (northeast of Shasta Lake, near the town of Big Bend
), Lewiston, Lake McCloud
(south of the town of McCloud), Shasta and Trinity Lakes are large reservoirs extensively used for fishing, boating and camping. Houseboats can also be rented at Shasta Lake.
Peaks, trails and byways:
Shasta-Trinity National Forest has over 460 miles of trails including a 154-mile (248 km) section of the Pacific Crest Trail in an east - west direction. The 500-mile Volcanic Legacy Scenic Byway is an auto tour of northern California's volcanos and begins at Lassen Volcanic National Park
, then to Mount Shasta and ends at Crater Lake National Park.
Lookouts and cabins:
In the lavaflow area of Medicine Lake Volcano
, is the Little Mt. Hoffman fire Lookout
. Restored to its original character, the lookout is now being offered as an overnight retreat for personal recreation use. From a height of 7,309 feet (2,228 m), Little Mt. Hoffman offers a view of Mt. Shasta, Lassen Peak
, Mt. McLoughlin and a variety of other landforms. From the Tulelake
Basin in the north to the Fall River
valley in the south, the 360 degree view offers a view at some of northern California's most notable scenery. There is also Hirz lookout near Lake Shasta and the Post Creek Lookout
(somewhat near the town of Platina
, on the southern end of the forest).
The Forest Glen cabin is a historic guard station, the oldest Forest Service building on the Shasta-Trinity National Forest. It was built in 1916 under the direction of John T. Grey, District Ranger of the Mad River
Ranger District on the old Trinity National Forest. It is available for rent all year. Beginning in McCloud, the Modoc Volcanic Scenic Byway travels through some unique volcanic scenery in the eastern portion of the Forest on its way to Medicine Lake, Lava Beds National Monument
, and Tule Lake